The Seaside Aquarium, located at the end of Second Avenue and North Promenade (about two blocks north of the Seaside Turnaround), is a landmark. Built in the 1920s, the structure housing the aquarium was used as a large saltwater swimming pool and converted to an aquarium in 1937.

Visitors enjoy the "Discovery Center" with its hands-on open tank that allows them to touch starfish and anemones.

The Seaside Aquarium was a pioneer in breeding harbor seals - and a favorite attraction for the younger set is the seal-feeding tank. The seals have developed different calls and behaviors to convince you to throw a morsel their way. Admission is charged. Open daily at 9 a.m. For more information, call (503) 738-6211 or visit